books.google.co.uk - Ultimately, World War II was the first war won by technology, but within only a few weeks after the war began, the U.S. Navy realized its torpedo program was a dismal failure. Submarine skippers reported that most of their torpedoes were either missing the targets or failing to explode if they did hit....https://books.google.co.uk/books/about/Hellions_of_the_Deep.html?id=5pJxc8Je2vsC&utm_source=gb-gplus-shareHellions of the Deep